Meyer Products Sander/Vibrator Kit (BL Series)Meyer Products Sander/Vibrator Kit (BL Series). Makes Your Meyer Spreader More Versatile. Spread a 50/50 blend of rock salt and sand or sand only. Vibrator, vibrator mounting plate, baffle plate. Fits Meyer BL240, BL400 & BL750 truck-mount spreaders. Power Equipment Direct was founded on the premise of simplified shopping..